SSND-Double Expansion 22"

SSND-Double Expansion 22" is an ultra-long, high-capacity flexible silicone urethral sound classified in the Beginner/Intermediate sizing tier. Featuring an impressive 22.0-inch total length with a 21.5-inch insertable depth, this profile is built to span deep anatomical pathways. The architecture begins with an elongated, gently tapered entry tip that seamlessly expands up to a primary 12mm (36 Fr) peak diameter. The body then tapers back down to an 8mm valley before repeating a second 12mm expansion zone, delivering dynamic, dual-wave sensation during insertion. Positioned just in front of the broad safety base, a 9mm anatomical retention valley allows the internal sphincter muscle to anchor the sound securely for comfortable, stable retention wear. It can be configured as a solid silicone unit or with an optional open-core channel for breathability and fluid passage.

• Elongated Lead-In Tip: Ultra-gradual, smooth entry profile engineered for safe, low-friction placement.

• Dual 12mm Expansion Zones: Two strategically spaced 12mm (36 Fr) peak diameter segments deliver double the targeted stretching stimulation along the channel.

• Mid-Shaft Recess: 8mm intermediate valley between expansion zones provides dynamic tactile relief during depth adjustments.

• Pre-Base Retention Valley: Drops to a 9mm groove behind the second bulb to serve as a reliable sphincter anchor point.

• Safety Base: Broad flanged style base prevents over-insertion and allows quick, controlled removal.

The SSND-Double Expansion 22" features a total length of 22.0 inches with an insertable depth of 21.5 inches (546mm) measured directly from the tapered lead-in tip to the safety flange. Its extra-long profile provides full anatomical coverage for experienced users seeking deep reach.

Dimension & Sizing Profile

👑 Bob's Choice Recommendations

• Experience Level: Intermediate

• The Prime Durometer Recommendation: #10 (Medium) or #18 (Firm) silicone densities are recommended as the best choices. They deliver crucial column strength across the extreme 21.5-inch insertable length, preventing as much unwanted flexing or buckling during insertion while accurately transferring every expansion transition.

Color Options: #18 and #30 are available in pure translucent. #00-20, #00-50, and #10 base colors are translucent white and can be mixed with any standard color.

⚠️ Important Safety Disclaimer: Because individual anatomy varies, we cannot guarantee a full fit for all longer or larger diameter pieces. Please use all products with care. By purchasing, you accept full responsibility for safe use. If you experience discomfort, discontinue use immediately.